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Detached house under Holedna
Nemečková, Petra ; Dohnal, Jakub (referee) ; Jelínek, Petr (advisor)
The aim of the bachelor´s thesis is to design a detached passive house for family with 2 kids. It is located in Brno, Jundrov. The main entrance is situated to south-east. The building has flat extensive green roof, ventilated facade with wooden cladding and mineral insulation. It is based on plain concrete foundation strips. The vertical structures are masonry made of aerated concrete blocks. Horizontal load-bearing structures are constructed from prestressed concrete panels. The building has two storeys. On the first floor is situated social zone, where is living room connected to the kitchen and bathroom with WC and technical zone, where is utility room and storage. These two parts are slightly divided by hallway. On the second floor is private zone with bedrooms, master bedroom, study, walk-in wardrobe, bathroom, and WC. An external blinds are designed on the windows oriented to south-west and south-east to regulate daylight and reduce heat gains. Heating and cooling in the house are provided by an underfloor heating covering the thermal losses and gains of the building. Heat supply for water heating and underfloor heating is provided by a heat pump. Excess water from extensive green roof leads into the sewer system and a stormwater storage tank with a volume of 5m on the northwest edge of the plot. Afterwords, rainwater is discharged together with prefiltered sewage water into the combined sewer. Electricity is provided by a public network. Forced ventilation is provided by ventilation unit using flexible ducts installed in suspended ceiling. Ventilation is used only in living areas, bathrooms, and closet. The system has supply and exhaust ducts for air circulation connected to the distribution boxes and ended by vents with adjustable airflow . The ventilation unit with heat recovery and an air flow rate of 285 m/h is installed in utility room. Air exchange between the ventilation unit and exterior and ventilation unit and distribution boxes is provided by aerfoam ducts. Energy Performance Certificate is A – very efficient.
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Single-family house
Ráková, Andrea ; Kolář, Radim (referee) ; Struhala, Karel (advisor)
The aim of this bachelor’s thesis is to design an energy efficient single-family house and develop its project for building permission. First part of the thesis is dedicated to structural and architectural designs. The building is designed as a two-story detached house with gable roof and separate garage with green flat roof. The plot is slightly sloping, and it is located in Syrovice village near Brno. The first floor consists of large space which includes kitchen, dining area and a living room together with library and an access to the terrace. The rest of the first floor consists of multiple smaller spaces like the utility room, storage room and the toilet. It also contains a hall with staircase, which allows access to the second floor of the house. The second floor is designed as a private zone including three bedrooms, shared closet, home office, bathroom and another separate toilet. The building will be based on strip concrete foundations and load-bearing structure of both floors will be masonry from sand-lime blocks insulated with polystyrene. Floor slab is designed from pre-stressed concrete hollow core panels and the roof structure consists of timber truss girders. This part of the thesis also focuses on solutions related to fire safety of the building, daylighting, thermal and acoustic properties of proposed structures. Second part of the thesis presents an elaboration of energy certificate and concepts of following building services: water management that includes fresh water supply, wastewater discharge and rainwater usage, electricity supply and its storage, heating system using air to water heat pump as a source for floor heating and cooling. The main focus of this part of the project is developing detailed design of mechanical ventilation with heat recovery.
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Hygrothermal response of building components
Slávik, Richard ; Šťastník, Stanislav (referee) ; Vertál´,, Marián (referee) ; Kalousek, Miloš (advisor)
This dissertation thesis is focused on the study of simultaneous transport of heat and moisture in building components. First, the introduction briefly summarises current international state of the art in assessment and evaluation of building components focused on moisture. Besides description of methodological approaches and analysis of differences between them, the approaches are modelled using examples which help to identify their properties and explain the application framework of the methods. These examples do not only illustrate the procedures; they also indicate their limits and identify the pitfalls of models’ application in comparison with each other. Next, the thesis includes basic introduction to material parameters necessary in numerical modelling. Moreover, solutions to questions from the assignment are discussed from the point of view of the theory of heat and moisture transport. To fulfil the thesis’ objectives, theoretical analysis and calculations were implemented. Calculations were carried out not only by well-known methods, but also using an own-developed complex algorithm which implements simultaneous heat and moisture transport modelling based on finite element methods and which allows to implement nonlinear behaviour of material properties. Furthermore, the thesis contains description of and results from two experiments. A brief description of an electronic device developed and used for the experiments is included. Experimental results are confronted with both simplified and advanced theoretical models. At last the thesis concludes with discussion of acquired findings, brief summary of potential contribution of this work to the field of building science and engineering practice, and indication of the directions for further development.
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Hygrothermal response of building components
Slávik, Richard ; Šťastník, Stanislav (referee) ; Vertál´,, Marián (referee) ; Kalousek, Miloš (advisor)
This dissertation thesis is focused on the study of simultaneous transport of heat and moisture in building components. First, the introduction briefly summarises current international state of the art in assessment and evaluation of building components focused on moisture. Besides description of methodological approaches and analysis of differences between them, the approaches are modelled using examples which help to identify their properties and explain the application framework of the methods. These examples do not only illustrate the procedures; they also indicate their limits and identify the pitfalls of models’ application in comparison with each other. Next, the thesis includes basic introduction to material parameters necessary in numerical modelling. Moreover, solutions to questions from the assignment are discussed from the point of view of the theory of heat and moisture transport. To fulfil the thesis’ objectives, theoretical analysis and calculations were implemented. Calculations were carried out not only by well-known methods, but also using an own-developed complex algorithm which implements simultaneous heat and moisture transport modelling based on finite element methods and which allows to implement nonlinear behaviour of material properties. Furthermore, the thesis contains description of and results from two experiments. A brief description of an electronic device developed and used for the experiments is included. Experimental results are confronted with both simplified and advanced theoretical models. At last the thesis concludes with discussion of acquired findings, brief summary of potential contribution of this work to the field of building science and engineering practice, and indication of the directions for further development.
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